CVE-2021-20439
CVE-2021-20439 is a high-severity vulnerability in Ibm Security Access Manager with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-522
- Affected product: Ibm Security Access Manager
- Published:
- Last modified:
Description
IBM Security Access Manager 9.0 and IBM Security Verify Access Docker 10.0.0 stores user credentials in plain clear text which can be read by an unauthorized user.
Frequently asked questions
- What is CVE-2021-20439?
- IBM Security Access Manager 9.0 and IBM Security Verify Access Docker 10.0.0 stores user credentials in plain clear text which can be read by an unauthorized user.
- How severe is CVE-2021-20439?
- CVE-2021-20439 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2021-20439 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-20439?
- CVE-2021-20439 primarily affects Ibm Security Access Manager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-20439?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-20439 published?
- CVE-2021-20439 was published on 2021-07-15 and last updated on 2026-06-17.
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/196453
- https://www.ibm.com/support/pages/node/6471903
Affected products (2)
- cpe:2.3:a:ibm:security_access_manager:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:ibm:security_verify_access:10.0.0:*:*:*:*:*:*:*
More vulnerabilities in Ibm Security Access Manager
- CVE-2018-1722 — Critical (CVSS 10.0): IBM Security Access Manager Appliance 9.0.4.0 and 9.0.5.0 could allow remote code execution when Advanced Access…
- CVE-2020-4499 — Critical (CVSS 9.8): IBM Security Access Manager 9.0.7 and IBM Security Verify Access 10.0.0 could allow an unauthorized public Oauth client…
- CVE-2016-3028 — Critical (CVSS 9.1): IBM Security Access Manager for Web 7.0 before IF2 and 8.0 before 8.0.1.4 IF3 and Security Access Manager 9.0 before…
- CVE-2019-4135 — High (CVSS 8.8): IBM Security Access Manager 9.0.1 through 9.0.6 is affected by a security vulnerability that could allow authenticated…
- CVE-2018-1850 — High (CVSS 8.8): IBM Security Access Manager Appliance 9.0.3.1, 9.0.4.0 and 9.0.5.0 could allow unauthorized administration operations…
- CVE-2016-3025 — High (CVSS 8.1): IBM Security Access Manager for Mobile 8.x before 8.0.1.4 IF3 and Security Access Manager 9.x before 9.0.1.0 IF5 do not…
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